+ private void initializeFriends() {
+ when(configuration.getStringValue("Sone/" + SONE_ID + "/Friends/0/ID")).thenReturn(
+ TestValue.from("Friend1"));
+ when(configuration.getStringValue("Sone/" + SONE_ID + "/Friends/1/ID")).thenReturn(
+ TestValue.from("Friend2"));
+ when(configuration.getStringValue("Sone/" + SONE_ID + "/Friends/2/ID")).thenReturn(
+ TestValue.<String>from(null));
+ }
+
+ @Test
+ public void friendsAreReturnedCorrectly() {
+ initializeFriends();
+ when(sone.isLocal()).thenReturn(true);
+ Collection<String> friends = memoryDatabase.getFriends(sone);
+ assertThat(friends, containsInAnyOrder("Friend1", "Friend2"));
+ }
+
+ @Test
+ public void friendsAreOnlyLoadedOnceFromConfiguration() {
+ friendsAreReturnedCorrectly();
+ memoryDatabase.getFriends(sone);
+ verify(configuration).getStringValue("Sone/" + SONE_ID + "/Friends/0/ID");
+ }
+
+ @Test
+ public void friendsAreOnlyReturnedForLocalSones() {
+ Collection<String> friends = memoryDatabase.getFriends(sone);
+ assertThat(friends, emptyIterable());
+ verify(configuration, never()).getStringValue("Sone/" + SONE_ID + "/Friends/0/ID");
+ }
+
+ @Test
+ public void checkingForAFriendReturnsTrue() {
+ initializeFriends();
+ when(sone.isLocal()).thenReturn(true);
+ assertThat(memoryDatabase.isFriend(sone, "Friend1"), is(true));
+ }
+
+ @Test
+ public void checkingForAFriendThatIsNotAFriendReturnsFalse() {
+ initializeFriends();
+ when(sone.isLocal()).thenReturn(true);
+ assertThat(memoryDatabase.isFriend(sone, "FriendX"), is(false));
+ }
+
+ @Test
+ public void checkingForAFriendOfRemoteSoneReturnsFalse() {
+ initializeFriends();
+ assertThat(memoryDatabase.isFriend(sone, "Friend1"), is(false));
+ }
+
+ @Test
+ public void friendIsAddedCorrectlyToLocalSone() throws ConfigurationException {
+ when(sone.isLocal()).thenReturn(true);
+ memoryDatabase.addFriend(sone, "Friend1");
+ assertThat(configurationValues.get("Sone/" + SONE_ID + "/Friends/0/ID").getValue(),
+ is("Friend1"));
+ assertThat(configurationValues.get("Sone/" + SONE_ID + "/Friends/1/ID").getValue(),
+ nullValue());
+ }
+
+ @Test
+ public void friendIsNotAddedToRemoteSone() throws ConfigurationException {
+ memoryDatabase.addFriend(sone, "Friend1");
+ verify(configuration.getStringValue("Sone/" + SONE_ID + "/Friends/0/ID"), never()).setValue(
+ anyString());
+ }
+
+ @Test
+ public void configurationIsWrittenOnceIfFriendIsAddedTwice() throws ConfigurationException {
+ when(sone.isLocal()).thenReturn(true);
+ memoryDatabase.addFriend(sone, "Friend1");
+ memoryDatabase.addFriend(sone, "Friend1");
+ verify(configuration.getStringValue("Sone/" + SONE_ID + "/Friends/0/ID")).setValue(
+ anyString());
+ }
+
+ @Test
+ public void friendIsRemovedCorrectlyFromLocalSone() throws ConfigurationException {
+ when(sone.isLocal()).thenReturn(true);
+ memoryDatabase.addFriend(sone, "Friend1");
+ memoryDatabase.removeFriend(sone, "Friend1");
+ assertThat(configurationValues.get("Sone/" + SONE_ID + "/Friends/0/ID").getValue(),
+ nullValue());
+ assertThat(configurationValues.get("Sone/" + SONE_ID + "/Friends/1/ID").getValue(),
+ nullValue());
+ }
+
+ @Test
+ public void configurationIsNotWrittenWhenANonFriendIsRemoved() throws ConfigurationException {
+ when(sone.isLocal()).thenReturn(true);
+ memoryDatabase.removeFriend(sone, "Friend1");
+ verify(configurationValues.get("Sone/" + SONE_ID + "/Friends/0/ID"), never()).setValue(
+ anyString());
+ }
+
+ @Test
+ public void newDatabaseKnowsNoSones() {
+ memoryDatabase.startAndWait();
+ assertThat(memoryDatabase.isSoneKnown(sone), is(false));
+ assertThat(configurationValues, hasKey("KnownSones/0/ID"));
+ assertThat(configurationValues, not(hasKey("KnownSones/1/ID")));
+ }
+
+ @Test
+ public void databaseLoadsKnownSonesCorrectly() {
+ configurationValues.put("KnownSones/0/ID", TestValue.from(SONE_ID));
+ memoryDatabase.startAndWait();
+ assertThat(memoryDatabase.isSoneKnown(sone), is(true));
+ }
+
+ @Test
+ public void databaseStoresKnownSonesCorrectly() throws ConfigurationException {
+ memoryDatabase.setSoneKnown(sone);
+ assertThat(configurationValues, hasKey("KnownSones/0/ID"));
+ assertThat(configurationValues.get("KnownSones/0/ID").getValue(), is(SONE_ID));
+ assertThat(configurationValues, hasKey("KnownSones/1/ID"));
+ assertThat(configurationValues.get("KnownSones/1/ID").getValue(), nullValue());
+ assertThat(configurationValues, not(hasKey("KnownSones/2/ID")));
+ }
+
+ @Test
+ public void stoppingTheDatabaseSavesTheKnownSones() throws ConfigurationException {
+ memoryDatabase.startAndWait();
+ memoryDatabase.stopAndWait();
+ verify(configurationValues.get("KnownSones/0/ID")).setValue(null);
+ }
+